Mask mandate and use efficacy in state-level COVID-19 containment
Authors: Damian D. Guerra, Daniel J. Guerra doi: https://doi.org/10.1101/2021.05.18.21257385 Abstract Background Containment of the COVID-19 pandemic requires evidence-based strategies to reduce transmission. Because COVID-19 can spread via respired droplets, many states have mandated mask use in public settings. Randomized control trials have not clearly demonstrated mask efficacy against respiratory viruses, and observational studies conflict on whether mask use predicts lower […]